Added instructions for PostgreSQL
Added instructions for PostgreSQL

mbeijen/otrs-1,brandonshults01/otrs,noritnk/otrs,thorsteneckel/otrs,PortgasDAce/otrs,balazj/otrs,mburggraf/otrs,PortgasDAce/otrs,vlascoder/otrs,thorsteneckel/otrs,nilei/otrs,linearregression/otrs,PortgasDAce/otrs,balazj/otrs,xhoy/otrs,mbeijen/otrs-1,rudy500/otrs,s7design/otrs,eliasp/otrs,muehlbauer/otrs,capeit-tto/otrs,MBRG/otrs,mburggraf/otrs,eliasp/otrs,capeit-tto/otrs,s7design/otrs,moritz/otrs,thorsteneckel/otrs,linearregression/otrs,moritz/otrs,balazj/otrs,moritz/otrs,muehlbauer/otrs,s7design/otrs,linearregression/otrs,StCyr/otrs,vlascoder/otrs,StCyr/otrs,StCyr/otrs,crythias/otrs,capeit-tto/otrs,nilei/otrs,xhoy/otrs,balazj/otrs,thorsteneckel/otrs,mbeijen/otrs-1,oiami/otrs,noritnk/otrs,eliasp/otrs,crythias/otrs,crythias/otrs,oiami/otrs,nilei/otrs,vlascoder/otrs,oiami/otrs,xhoy/otrs,brandonshults01/otrs,mburggraf/otrs,linearregression/otrs,xhoy/otrs,PortgasDAce/otrs,nilei/otrs,brandonshults01/otrs,crythias/otrs,MBRG/otrs,PortgasDAce/otrs,linearregression/otrs,MBRG/otrs,s7design/otrs,rudy500/otrs,brandonshults01/otrs,xhoy/otrs,eliasp/otrs,MBRG/otrs,thorsteneckel/otrs,rudy500/otrs,nilei/otrs,balazj/otrs,eliasp/otrs,crythias/otrs,moritz/otrs,oiami/otrs,rudy500/otrs,muehlbauer/otrs,StCyr/otrs,s7design/otrs,muehlbauer/otrs,muehlbauer/otrs,MBRG/otrs,mburggraf/otrs,moritz/otrs,StCyr/otrs,brandonshults01/otrs,mburggraf/otrs,oiami/otrs,noritnk/otrs,rudy500/otrs